Originally posted by Debra Heschl I recently upgraded to a K-7..I can not find macro setting..do I need to use a macro lens for my camera? I had an istD previously & it had a macro setting.
The K-7 will focus just as closely as the istD with the same lens. Macro mode on a DSLR is just a program the engineers created to help inexperienced shooters. It's like a specialized Green mode. It doesn't do anything that a competent photographer can't do better.
Do you need a macro lens? Maybe, maybe not; it depends on what you want to photograph. The Pentax 18-55 with its 0.34X magnification (1:3 magnification ratio) would be called a macro lens if it were made by a third party manufacturer. Tamron and Sigma apply the "macro" label to close-focussing lenses as a marketing tool. For example, the Tamron and Pentax 18-250mm superzooms have a 1:3.5 magnification ratio. Only the Tamron version is called "Macro", though they are the same lens optically. No zoom will reach 1:1 magnification, but some can achieve 1:2, which was the standard for older macro lenses. Any current Pentax lens that is called macro will do 1:1, which is what most people consider real macro these days.
If you just want to photograph flowers, all you need is a close focussing lens like the DA 18-55. If you want to do extreme closeups of the stamens on a blossom, you will want 1:1 macro ability. If you can't afford a true macro lens, there are other less expensive methods like diopters and reversing rings.